Ok, trying not to flame you, because your snark seriously warrants it.
Explain that paragraph. What part explains how he's denied for pre-existing conditions?
He signed up with Humana. ACA covers pre-existing conditions. His condition existed previous to his insurance. Pre-existing = BEFORE you are covered.
Therefore, his sentence, "but it only covers anything from January 2014 on" is confusing: "it?" (policy covers? law covers?) "anything?" (health conditions? insurance policies?)
If you want to talk reading comprehension, I'm all for it, but cut the attitude. This is a serious case, and the facts of how he fell into this aren't explained anywhere.
The only explanation I might be able to see is that last year (when ACA signups were going on, btw), he signed up PREVIOUS to ACA, and has an old policy, which somehow doesn't cover pre-existing conditions. But nowhere here is that explained, and everyone is focusing on the ACA, as if this is a loophole in it.